Exhaust-Only Island Hood Model:  NDI Rated for the following cooking surface temperatures: 400°F, 600°F, 700°F Bottom edge of hood hung: 33 - 48 in. above cooking surface, with lights. 11.5 - 48 in. above cooking surface, without lights. UL Listed by UL Standard 710. Built in compliance with NSF Standard 2.          Compensating Island Hood Model:  NFRI Rated for the following cooking surface temperatures: 400°F, 600°F, 700°F Bottom edge of hood hung: 33 - 48 in. above cooking surface, with lights. 11.5 - 48 in. above cooking surface, without lights. UL Listed by UL Standard 710. Built in compliance with NSF Standard 2.